Open back frame - oh, the possibilities! Fill with resin, polymer clay, etc. How to Use. Create a temporary back by sticking to some packing tape. Pour resin. After the resin is cured, peel off the packing tape. If you want, you can then add a little resin to dome the back.

Lead-free. Nickel-free. 29mm x 33mm x 4.5mm Hole size is approx. Loop ID is 2mm. By the pack of 10.